exv4w6





Exhibit 4.6







BUILDERS FIRSTSOURCE, INC. LETTER OF TRANSMITTAL-SUBSCRIPTION FORM



	 	 	 
	 	 	Investor ID Number




THIS LETTER OF TRANSMITTAL, INCLUDING THE ACCOMPANYING INSTRUCTIONS, SHOULD BE READ CAREFULLY
BEFORE THIS LETTER OF TRANSMITTAL IS COMPLETED.


Builders FirstSource, Inc. is conducting a rights offering (the “Rights Offering”) which entitles
the holders of shares of the Company’s stock (the “Stock”), as of the close of business on
December 14, 2009 (the “Record Date”) to receive 1.6111446 Rights (each, a “Right”) for each share of
Stock held of record on the Record Date. Holders of Rights are entitled to subscribe for and
purchase one share of Stock for every Right (the “Basic Subscription Right”) at a subscription
price of $3.50 per share. Holders who elect to exercise their basic subscription privilege in
full may also subscribe for additional shares (up to the number of shares for which such holder
subscribed for under its basic subscription privilege) at the same subscription price per share.
If an insufficient number of shares are available to satisfy fully oversubscription requests the
available shares will be distributed proportionally among rights holders who exercise their
oversubscription privilege.


For a more complete description of the terms and conditions of the Rights Offering, please refer
to the Prospectus dated [•], 2009 (the “Prospectus”), which is incorporated herein by reference.
Copies of the Prospectus are available upon request from BNY Mellon Shareowner Services (toll
free (XXX) XXX-XXXX).


I hereby irrevocably subscribe for the number of shares of Stock (“Shares”) indicated on the from
upon the terms and conditions specified in the Prospectus relating thereto. Receipt of the
Prospectus is hereby acknowledged.


Please
complete the back if you would like to transfer ownership or request special mailing.





	 	 	 
	 
	 	 
	 
	 	 







	 	 	 	 	 	 	 	 	 
	Œ 	Signature: This form must be signed by the registered holder(s) exactly as their
name(s) appears on the certificate(s) or by person(s) authorized to sign on
behalf of the registered holder(s) by documents transmitted herewith.

	 
	X
	 	 	 	¦	 	¦	 	 
	 	 
	Signature of Shareholder	 	Date	 	Daytime Telephone #
	 
	X
	 	 	 	¦	 	¦	 	 
	 	 
	Signature of Shareholder	 	Date	 	Daytime Telephone #
	 











PLEASE CERTIFY YOUR TAXPAYER IDENTIFICATION
NUMBER (TIN) BY COMPLETING THE INFORMATION
IN BOX NUMBER ‘ ON THE REVERSE SIDE.


 



 



SEE INSTRUCTIONS ON THE REVERSE SIDE



	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	


	�
	 	 	 	 	 	BASIC SHARES TO SUBSCRIBE	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	
WHOLE SHARES
 
	


	Ž
	 	 	 	 	 	OVER SUBSCRIPTION FOR SHARES 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	
WHOLE SHARES
 
	


	�
	 	 	 	 	 	RIGHTS OFFER FOR SALE	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 	
WHOLE SHARES






		
	  ENCLOSED IS MY CHECK FOR $	 

	 	 










�


	 	 	 	 	 
	 	 	 	 	 
	SUBSCRIPTION CERTIFICATE NUMBER	 	 	 	CUSIP NUMBER
	 	 	 	 	 
	 	 	 	 	 
	BASIC SHARES TO SUBSCRIBE	 	RIGHTS	 	RECORD DATE SHARES




BUILDERS FIRSTSOURCE, INC.

SUBSCRIPTION FOR RIGHTS OFFERING

RECORD DATE



	A.	 	Number of Shares subscribed for through the basic subscription privilege (not to exceed one
Share for each Right held):                                         Shares

	 
	B.	 	Number of Shares subscribed for through the over subscription privilege (not to exceed the
number of Shares subscribed for under the basic subscription
privilege, and the basic subscription must be fully exercised):                                          Shares

	 
	C.	 	Total Subscription Price (sum lines A and B multiplied by $3.50): $                                        

	 
	D.	 	Method of Payment:





		o	 	Certified or Cashier’s check or money order payable to BNY Mellon Shareowner Services
(acting on behalf of Mellon Bank, N.A.)




 



HOW TO CONTACT BNY MELLON SHAREOWNER SERVICES


By Telephone — 9 a.m. to 6 p.m. New York Time, Monday through Friday, except for bank holidays:


	 	 	 	 	 
	 	 	From within the U.S., Canada or Puerto Rico
	 
	 	 	 	1-XXX-XXX-XXX (Toll Free)
	 	 	From outside the U.S.
	 
	 	 	 	1-XXX-XXX-XXX (Collect)





SUBSCRIPTION TO PURCHASE SHARES OF BUILDERS FIRSTSOURCE, INC.

RETURN TO: MELLON BANK, N.A. C/O BNY MELLON SHAREOWNER SERVICES



WHERE TO FORWARD YOUR TRANSMITTAL MATERIALS


	 	 	 
	By Mail:
 
	 	By Overnight Courier or By Hand
	BNY Mellon Shareowner Services
	 	BNY Mellon Shareowner Services
	Attn: Corporate Action Dept., 27th Floor
	 	Attn: Corporate Action Dept., 27th Floor
	P.O. Box XXXX
	 	480 Washington Boulevard
	South Hackensack, NJ 07606
	 	Jersey City, NJ 07310




THIS RIGHTS OFFERING EXPIRES AT 5:00 P.M., EASTERN TIME, ON JANUARY 15, 2010 AND THIS SUBSCRIPTION CERTIFICATE IS VOID THERE AFTER.
















 

























‘     SUBSTITUTE
FORM W-9 -  Department of the Treasury,

Internal Revenue Service

Payer’s Request for Taxpayer Identification Number (TIN)




 








’ Special Transfer Instructions and Signature Guarantee Medallion




If you want your Builders FirstSource, Inc. stock and any refund check to be issued
in another name, fill in this section with the information for the new account name.










Part 1 — PLEASE PROVIDE YOUR TAXPAYER
IDENTIFICATION NUMBER (“TIN”) IN THE BOX AT THE
RIGHT AND CERTIFY BY SIGNING AND DATING BELOW





Under penalties of perjury. I certify that:




	 	1.	 	The number shown on this form is
my correct taxpayer identification
number (or I am waiting for a
number to be issued to me), and

	 
	 	2.	 	I am not subject to backup
withholding because: (a) I am
exempt from backup withholding,
or (b) I have not been
notified by the Internal Revenue
Service (IRS) that I am subject to
backup withholding as a result of a
failure to report all interest or
dividends, or (c) the IRS has
notified me that I am no longer
subject to backup withholding, and

	 
	 	3.	 	I am a U.S. citizen or other U.S.
person (including a U.S.
resident alien).















	 	 	 	 	 
	 	 	 	 	 
	è

	 	FILL IN the space below.
	 	 






	 	 	   	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 		 
	 	 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 







EXEMPT PAYEE o





  Please check appropriate box:




  Individual/Sole proprietor o




	 	 	 
	  Corporation o

	 	Partnership o






 





  Limited liability company o




	 	 	 
	Enter the tax
 classification

	 	D=disregarded entity o






	 	 	 
	  C=corporation o

	 	P=partnership o





 





	 	 	 
	   o
Other 4
	 	 
	 

	 	 













	 	 	 
	 

	 	 
	Name (Please Print First, Middle & Last Name)

	 	(Title of Officer Signing this Guarantee)
	 
	 	 
	 

	 	 
	Address               (Number and Street)

	 	(Name of Guarantor - Please Print)
	 
	 	 
	 

	 	 
	(City, State & Zip Code)

	 	(Address of Guarantor Firm)
	 
	 	 
	 

	 	 
	(Tax Identification Number)
	 	 





 







“ Special Mailing Instructions




Fill in ONLY if mailing to someone other than the undersigned or to the undersigned at an address
other than that shown on the front of this card. Mail certificate(s) and check(s) to:




 




Name (Please Print First, Middle & Last Name)




 




Address          (Number and Street)




 





 




(City, State & Zip Code)











  Signature                                                              Date








	 	 	 
	 	 	 
	 	 	 






COMPLETE ALL APPLICABLE SECTIONS OF THIS FORM USING THE INSTRUCTIONS BELOW.





	Œ	 	Sign and date Box 1 and include your day time phone number.

	 
	�	 	Place an
ý in the box and fill in the number of whole shares you wish to subscribe for under
your basic subscription privileges.

	 
	Ž	 	Place an
ý in the box and fill in the number of whole shares you wish to over subscribe for your
over subscription privileges.

(Not to exceed the number of Shares subscribed for under the basic subscription privilege, and the
basic subscription must be fully exercised).

	 
	�	 	Place an
ý in the box and fill in the number of rights you wish to offer for sale.

	 
	�	 	Rights card and calculation section for determining your basic/oversubscription privileges.

	 
	‘	 	PLEASE SIGN IN BOX 6 TO CERTIFY YOUR TAXPAYER ID OR SOCIAL SECURITY NUMBER if you are a U.S.
Taxpayer. If the Taxpayer ID or Social Security Number is incorrect or blank, write the corrected
number in Box 6 and sign to certify. Please note that BNY Mellon Shareowner Services may withhold
28% of your proceeds as required by the IRS if the Taxpayer ID or Social Security Number is not
certified on our records. If you are a non - U.S. Taxpayer, please complete and return form W-8BEN.

	 
	’	 	If you want your Builders FirstSource, Inc. stock and any refund check to be issued in another
name, complete the Special Transfer
Instructions in Box 7. Signature(s) in Box 7 must be medallion guaranteed.

	 
	“	 	Fill in Box 8 if, mailing to someone other than the undersigned or to the undersigned at an
address other than that shown on the front of this card.





THIS RIGHTS OFFERING HAS BEEN QUALIFIED OR IS BELIEVED TO BE EXEMPT FROM QUALIFICATION ONLY UNDER
THE FEDERAL LAWS OF THE UNITED STATES AND THE LAWS OF THE STATES IN THE UNITED STATES. RESIDENTS OR
OTHER JURISDICTIONS MAY NOT PURCHASE THE SECURITIES OFFERED HEREBY UNLESS THEY CERTIFY THAT THEIR
PURCHASES OF SUCH SECURITIES ARE EFFECTED IN ACCORDANCE WITH THE APPLICABLE LAWS OF SUCH
JURISDICTIONS.



THIS RIGHTS OFFERING EXPIRES AT 5:00 P.M., EASTERN TIME, ON JANUARY 15, 2010 AND THIS SUBSCRIPTION
CERTIFICATE IS VOID THEREAFTER.